Thanks for playing, and thanks so much for the kind words!
A lot of people have said the same about clicking on the TNT, I'll have to find a way to make them look less interactive in a post jam update. :)
Thanks for reporting the bug, the screenshot is really useful - it's definitely a bug, the top part of the blueprint should've "fallen down" the same way the building blocks would - see edited image for how it should have played out. I'll investigate and fix, thanks!